1312859 has 8 divisors (see below), whose sum is σ = 1438560. Its totient is φ = 1192576.

The previous prime is 1312853. The next prime is 1312867. The reversal of 1312859 is 9582131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312859 - 2⁸ = 1312603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839 + ... + 1824.

It is an arithmetic number, because the mean of its divisors is an integer number (179820).

2^1312859 is an apocalyptic number.

1312859 is a deficient number, since it is larger than the sum of its proper divisors (125701).

1312859 is a wasteful number, since it uses less digits than its factorization.

1312859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709.

The product of its digits is 2160, while the sum is 29.

The square root of 1312859 is about 1145.8005934717. The cubic root of 1312859 is about 109.4979601102.

The spelling of 1312859 in words is "one million, three hundred twelve thousand, eight hundred fifty-nine".